TL;DR
Minification removes unnecessary characters (whitespace, comments, long variable names) from HTML, CSS, and JavaScript, while tree shaking is a build-time process that eliminates unused exports from JavaScript modules.
What is Tree Shaking & Minification?
Minification removes unnecessary characters (whitespace, comments, long variable names) from HTML, CSS, and JavaScript, while tree shaking is a build-time process that eliminates unused exports from JavaScript modules.
Learn more in our reducing JavaScript size guide, or work with us through our done-for-you speed optimization service.
How Tree Shaking & Minification is Measured
Lighthouse reports the potential savings from minifying CSS and JavaScript and from removing unused JavaScript.